For 75 minutes, in 94 countries around the world: millions and millions of fans simultaneous enjoyed a special 50th anniversary episode of Doctor Who. Generations of fans have grown up with the Doctor and the Daleks, the Tardis and time travel. Doctor Who novelist and journalist for the UK's Radio Times, Nick Griffiths wanted to do something special to mark the occasion. So he set off on some travel of his own, visiting the locations where the 50th anniversary special was made around England and Wales.